OLIGHT Osight SE Enclosed Red Dot Sight, GLOCK® MOS Mount – Black

OLIGHT Osight SE RED enclosed red dot sight with direct GLOCK® MOS mounting

This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are bound to the anareus.cz domain.OLIGHT Osight SE RED is a compact enclosed red dot sight (Enclosed Emitter) designed for direct mounting on compatible GLOCK® MOS slides. No adapter plate is required between the red dot sight and the slide, allowing the optic to sit lower while also eliminating the need to purchase additional mounting plates. According to the manufacturer, the low-profile design allows direct Co-Witness with most factory GLOCK® iron sights. The enclosed housing also protects the emitter from water, dust and dirt that can interfere with the beam path in open red dot sights. The Osight SE MOS uses an aspherical lens with a 21 × 14 mm window and a multi-layer anti-reflective coating. The aspherical lens design is engineered to reduce visible distortion and provide a clear, natural image. The manufacturer also specifies parallax-free operation and unlimited eye relief. The red Multi-Reticle system offers three display options: a precise 2 MOA dot, a standalone 32 MOA circle or their combination, 2 MOA dot + 32 MOA circle. Brightness can be adjusted across 10 levels, including 8 for daytime use and 2 for NV. Power is supplied by a CR1632 battery in a side-loading compartment. This means the red dot sight does not need to be removed from the slide when replacing the battery, preserving its mounting position and zero. The stated maximum battery life reaches up to 140,000 hours in Mode 3 when using the standalone dot. The motion sensor activates the red dot sight when movement is detected and switches it to sleep mode after 3 minutes of inactivity. It also features a memory function for the last setting and a low battery voltage warning. The red dot sight body is CNC-machined from 7075-T6 aircraft-grade aluminium. Measuring 62 × 26 × 28 mm, the Osight SE MOS weighs 45 g. The construction offers IPX7 water resistance, an operating temperature range from -30 to 60 °C and an elevation and windage adjustment range of ±35 MOA. One click of the adjustment mechanism equals 1 MOA. The Osight SE MOS is not compatible with G43X MOS and G48 MOS models and is not designed for GLOCK® MOS Gen 6 slides.

Key features of the OLIGHT Osight SE RED MOS red dot sight

Compatibility with GLOCK® MOS pistols

• The Osight SE MOS is designed for direct mounting on compatible GLOCK® MOS slides without an adapter plate.
• According to the supplied specifications, it is suitable for full-size and compact GLOCK® MOS Gen 4 and Gen 5 slides, including models such as the G17, G19, G19X, G20, G21, G22, G23, G26, G34 and G47.
• The Osight SE MOS is not compatible with the Slimline G43X MOS and G48 MOS models. It is also not designed for GLOCK® MOS Gen 6 slides.
• We always recommend checking the specific pistol model and generation before installation.

Technical specifications

• Manufacturer: OLIGHT
• Model: Osight SE MOS RED
• Type: Enclosed red dot sight (Enclosed Emitter)
• Mounting: Direct mounting on compatible GLOCK® MOS slide
• Adapter plate: Not required for compatible models
• Compatibility: GLOCK® MOS Gen 4 / Gen 5
• Not compatible with: G43X MOS, G48 MOS and GLOCK® MOS Gen 6
• Magnification: 1×
• Reticle colour: Red
• Wavelength: 650 nm
• Reticle: 2 MOA Dot / 32 MOA Circle / 2 MOA Dot + 32 MOA Circle
• Window size: 21 × 14 mm (0.83 × 0.55")
• Lens: Aspherical
• Multi-layer anti-reflective coating: Yes
• Brightness levels: 8 daytime + 2 NV
• Memory function: Yes
• Motion sensor: Yes
• Automatic sleep: After 3 minutes of inactivity
• Parallax Free: Yes
• Eye Relief: Unlimited
• Adjustment value: 1 MOA / click
• Elevation and windage adjustment range: ±35 MOA
• Power supply: 1× CR1632 (included)
• Battery replacement: Side-loading
• Maximum battery life: Up to 140,000 hours (Mode 3, Dot only)
• Material: 7075-T6 aluminium
• Water resistance: IPX7
• Operating temperature: -30 to 60 °C
• Storage temperature: -40 to 70 °C
• Dimensions: 62 × 26 × 28 mm
• Weight: 45 g
• M3 tightening torque: 15 in-lbs per screw

ANAREUS tip: During installation, the manufacturer requires the use of a removable medium-strength (blue) threadlocker on the supplied screws. The recommended tightening torque is specified on the included READ ME card; the technical specifications state a value of 15 in-lbs per screw for M3 screws.

Package contents

• 1× OLIGHT Osight SE MOS RED
• 1× CR1632 battery
• 1× adjustment tool
• 1× Osight SE MOS screw set
• 2× spare battery compartment screws
• 1× cleaning cloth
• 1× safety notice
• 1× user manual
• 1× Osight sticker

Frequently asked questions from our store

Do I need an adapter plate for the Osight SE MOS?

No, not with compatible GLOCK® MOS slides. The Osight SE MOS is designed for direct mounting without an intermediate adapter plate. This allows the red dot sight to sit lower and eliminates an additional mounting interface between the optic and the slide.

Is the Osight SE MOS compatible with all GLOCK® MOS pistols?

No. It is designed for compatible GLOCK® MOS models. It is not compatible with the Slimline G43X MOS and G48 MOS models and is also not designed for GLOCK® MOS Gen 6.

Does direct mounting allow the use of the original iron sights?

According to the manufacturer, the low-profile design of the Osight SE MOS allows direct Co-Witness with most factory GLOCK® iron sights. The specific result depends on the pistol model used and the height of the iron sights.

Do I need to remove the red dot sight when replacing the battery?

No. The CR1632 battery is replaced through the side compartment, allowing the red dot sight to remain mounted on the slide without changing its mounting position.

How do I know when the battery is nearly depleted?

If the battery voltage drops below 2.2 V, the reticle flashes rapidly three times and this warning repeats once per minute. In this case, the CR1632 battery should be replaced.